Improvement in stove-pipe ventilators



UNITED STATES PATENT FFIGE.

THOMAS R. VV'AY, OF SPRINGFIELD,

OHIO, ASSIGNOR OF ONE-HALF HIS RIGHT TO ANGUS MGKAY AND P. H. ELLWSORTH,OF HOT SPRINGS, ARK.

IMPROVEMENT IN STOVE-PIPE VENTILATORS.

Specification forming part of Letters Patent No. 205,985, dated July 16,ISTR; application filed June 1, 1878.

To all uhom it may concern.-

Be it known that I, THOMAS R. WAY, of Springeld, in the county of Clarkeand State of Ohio, have invented certain Improvements n Stove-PipeVentilatore, of which the folowing is a specication:

This invention relates to that class of stove- )ipe ventilators whichconsist of a perforated im or register encircling` a shortcorrespondugly-perforated pipe, so that by rotating the ing theperforations may be' opened or closed at will 5 and the inventionconsists in seating within the pipe two stiff metal rings, for theurpose of maintaining the pipe in a true cirular form, so as to insurean easy action of he ring and admit of the ventilator-pipe beng easilyiitted to the stove-pipe at all times.

Ventilators of the class above described have long been in common use;but it has een found in practice that, consisting, as they lo, of ashort length of pipe greatly weakened y the formation of numerous andlarge per- 'orations therein, they are easily flattened or ent out ofatrue circular form, in which case t becomes impossible or ditlicult tomove the ing and extremely difficult to make connecion with thestove-pipe. It is to 4overcome his difficulty and prevent the ventilatorfrom eing flattened or otherwise bent out of shape, ither before orduring the time of its applicaion, that my improvement is designed.

Figure 1 represents a side elevation of my entilator; Fig. 2, averticalcentral section of he same; Fig. 3, a plan view of one of thetiiening-rings.

A represents the ventilator pipe or body,

provided with perforations a. B represents the outside ring or band,provided with corresponding perforatiqns, and C my strengthening ringsor stays, arranged one in each end, and seated in grooves formed in thepipe.

As shown in the drawings, the rings are made of sufficient size to bestiff and unyielding, and are tted tightly within the pipe in suchmanner as to prevent the same from being sprung or bent in the least. Itis preferred, as shown in Fig. 3, to sever each ring on one side, toadmit ot' its being sprung into place, which is accomplished by lappingits ends and compressing it suflciently to spring it within the pipe,and then allow it to expand into the ring, groove, or seat. In orderthat the rings may be thus inserted when intended to tit closely, it isnecessary that they should be severed obliquely, as represented in Fig.3. Instead, however, of inserting and securing the rings in the mannerdescribed, they may be otherwise applied, provided they give to the pipea rm and rigid support.

Having thus described my invention, what I claim is- 1. In a stove-pipeventilator, the internal rings C C, applied substantially as and for thepurpose described.

2. The stove-pipe ventilator provided with the internal grooves orseats, having the round rings seated therein, in the manner shown anddescribed.

THOMAS R. WAY.

Witnesses:

A. P. LINN COCHRAN, RoBT. C. RoDGERs.

